On Tue, Nov 01, 2011 at 11:49:42AM -0400, Jan Kiszka wrote: > On 2011-11-01 16:30, Roedel, Joerg wrote: > > On Tue, Nov 01, 2011 at 09:39:49AM -0400, Jan Kiszka wrote: > >>> So SVM does not guarantee that an intercept during a task-switch can be > >>> restarted. > >> > >> Not a bug but still a deficit as it makes hardware-assisted task > >> switching practically useless, no? > > > > Not entirely. For hypervisors that can guarantee that there will be no > > intercept (NPT pre-mapped, no exceptions intercepted) it will still > > work. > > Yes, but that only covers the niche of simple static ones (partitioning > hypervisors). No, also a hypervisor that creates the nested page-page on advance falls into this category. Joerg -- AMD Operating System Research Center Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
